AH5798-WTG-7 Diodes Inc, AH5798-WTG-7 Datasheet - Page 3
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AH5798-WTG-7
Manufacturer Part Number
AH5798-WTG-7
Description
IC FAN MOTOR DRVR BLDC TSOT23-5
Manufacturer
Diodes Inc
Datasheet
1.AH5798-YG-13.pdf
(11 pages)
Specifications of AH5798-WTG-7
Applications
Fan Motor Driver, Brushless (BLDC)
Number Of Outputs
1
Current - Output
300mA
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
TSOT-23-5, TSOT-5, TSOP-5
Operational Type
Single Phase Hall Effect Latch Smart Fan Motor Controller
Operating Supply Voltage
6 V
Supply Current
5 mA
Operating Point Min/max
10 G to 50 G
Mounting Style
SMD/SMT
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Supply Voltage (min)
1.8 V
Supply Voltage (max)
5.5 V
Maximum Output Current
800 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Load
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
AH5798-WTG-7DITR
Functional Block Diagram
Operating
Notes:
AH5798
Document number: DS32001 Rev. 2 - 2
Magentic
O2
O1
FG
2. In “Normal spinning”, the FG changes its state at each rising edge of O1.
3. When the motor locks with South pole at the Hall element, O2 is kept on “L” and O1 is a clock with Ton/Toff ratio. When motor
4. When “Re-start spinning” occurs, the motor speed ramps up to the “Normal Spinning” speed from zero. Speed ramp-up profile
locks with North pole at the Hall element, O1 is kept on “L”, O2 is a clock with Ton/Toff ratio.
depends on motor characteristics.
N
S
Vss
Vdd
Normal spinning
Sensor
Hall
Power
AMP
motor locked detected
www.diodes.com
Automatic re-start
Shoutdown and
Ton
Lock detect,
Frequency
Generator
SINGLE PHASE HALL EFFECT LATCH SMART
3 of 11
Control
Logic
Mechanical lock
Toff
Soft Switching
Control
FAN MOTOR CONTROLLER
Full Bridge
Driver
“Re-start spinning”
motor locked cleared
FG
AH5798
O1
O2
© Diodes Incorporated
June 2010